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JRE & JDK.

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What is JDK ?  JDK stands for Java Development Kit. It is the combination of java compilation tools & java API.  The Java Development Kit (JDK) is a software development environment which is used to develop Java applications and  applets.  The JDK contains a private Java Virtual Machine (JVM) and a few other resources such as an interpreter/loader (java), a compiler (javac), an archiver (jar), a documentation generator (Javadoc), etc. to complete the development of a Java Application. JDK contains the following Development tools : java   It is a java interpreter that is used to run java application. javac It is a java complier used to translate java source code into Byte code. javadoc It create HTML documentation for java source code to files. jdb It is java debugger, it is used to find errors in the java code. appletviewer It is used for the execution of  ' applets '. jar This tool helps to manage jar files. What is JRE ? JRE is an stands for Java Runt...
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History of Java.

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The history of Java is very interesting. Java was originally designed for the interactive television, but it was too advanced for the digital cable television industry at the time.  The history of Java starts with the Green Team. Java team members (also known as Green Team), initiated this project to develop a language for digital devices such as set-top boxes, televisions, etc. However, it was best suited for internet programming. Later, Java technology was incorporated by Netscape. James  Gosling pioneered Java in June 1991 as a project called ‘ Oak .’ Gosling aimed to develop a virtual machine and language with a well-known notation like C, but with more precision and simplicity than C/C++.   Java Timeline JDK 1.0 was released on January 23, 1996. After the first release of Java, there have been many additional features added to the language. Now Java is being used in Windows applications, Web applications, enterprise applications, mobile applications, cards, etc. Each...
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Introduction To Java.

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What is JAVA ? Java is a  programming language  and a  platform . Java is a high level, robust, object-oriented and secure programming language. Platform : Any hardware or software environment in which a program runs, is known as a platform. Since Java has a runtim e environment (JRE) and API, it is called a platform.                 Let's have a quick look at Java programming example. class  example{        public   static   void  main(String args[]){           System.out.println( "Hello World..." );             }    }   Features of Java Object Oriented Programming (OOP). It follows all principles of  Object Oriented Programming. It supports inheritance ,polymorphism & data abstraction. In java Multiple inheritance is also possible with the help of  "INTERFACE". It ...
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